Lavandula plant named ‘KERBEEWHITE’

ABSTRACT

A new and distinct cultivar of  Lavandula angustifolia  plant named ‘KERBEEWHITE’ is disclosed, characterized by a compact, bushy plant, which is free flowering, with short peduncles, and wide flower spikes. Flowers are white. The new variety is a  Lavandula angustifolia , suitable for outdoor landscape and container use.

Latin name of the genus and species: Lavandula angustifolia.

Variety denomination: ‘KERBEEWHITE’.

BACKGROUND OF THE INVENTION

The new cultivar is the product of a planned breeding program under the direction of the inventors, David Kerley, Priscilla Kerley, Sarah Kerley, and Timothy Kerley, all citizens of the United Kingdom. The objective of the breeding program was to produce new Lavandula angustifolia cultivars for commercial ornamental purposes. During the Summer of 2013, the inventors performed a mass pollination of several proprietary, unnamed, unpatented Lavandula angustifolia seedlings. This resulted in the selection of the new variety ‘Kerbeewhite’ in July 2014. The breeding program and selection all took place at a commercial nursery in Cambridge, the United Kingdom.

Asexual reproduction of the new cultivar ‘KERBEEWHITE’ was first performed in Cambridge, UK in August 2014 by terminal vegetative cuttings and has shown that the unique features of this cultivar are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

The cultivar ‘KERBEEWHITE’ has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature, day length, and light intensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘KERBEEWHITE’. These characteristics in combination distinguish ‘KERBEEWHITE’ as a new and distinct Lavandula cultivar:

-   -   1. Compact, bushy plants.     -   2. Short peduncles.     -   3. Free flowering.     -   4. Wide flower spikes.     -   5. White flowers.

PARENTAL COMPARISON

Exact parents cannot be identified for comparison. In general, the new variety is more compact and floriferous than the varieties used in the mass pollination.

COMMERCIAL COMPARISON

Plants of the new cultivar ‘KERBEEWHITE’ are similar to plants of the unpatented variety Lavandula angustifolia ‘Arctic Snow’ in most horticultural characteristics, however, plants of the new cultivar ‘KERBEEWHITE’ differ in the following:

-   -   1. Peduncles of the new variety are longer than peduncles of         this comparator.     -   2. The new variety has 3 buds subtending from the bracts, while         this comparator has 5.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photograph in FIG. 1 illustrates in full color a typical plant of ‘KERBEEWHITE’ grown outdoors in Cambridge, UK. The plant is approximately 1 year old shown in an approximately 10 inch pot.

FIG. 2 illustrates a close up view of a typical inflorescence.

FIG. 3 illustrates a comparison with the well-known commercial variety ‘Arctic Snow’. ‘KERBEEWHITE’ is the plant on the left side of the photo, ‘Arctic Snow’ is on the right.

The photographs were taken using conventional techniques and although colors may appear different from actual colors due to light reflectance it is as accurate as possible by conventional photographic techniques.

DETAILED BOTANICAL DESCRIPTION

In the following description, color references are made to The Royal Horticultural Society Colour Chart 2007 except where general terms of ordinary dictionary significance are used. The following observations and measurements describe ‘KERBEEWHITE’ plants grown outdoors in Cambridge, UK. The growing temperature ranged from approximately 0 to 10° C. at night to 10 to 20° C. during the day. Measurements and numerical values represent averages of typical flowering types. No chemical or photoperiodic treatments were given.

-   Botanical classification: Lavandula angustifolia ‘KERBEEWHITE.’ -   Age of the plant described: Approximately 17 weeks, in a 2 liter     pot.

PROPAGATION

-   Time to rooting: About 27 days at approximately 20° C. -   Root description: Fine, well branched, becoming woody with age.

PLANT

-   Growth habit: Upright, slightly spreading. Dense at full flowering. -   Height: 12 cm to top of plant plane; 27 cm to top of flowers. -   Plant spread: 22 cm. -   Branching characteristics: Moderate branching. -   Length above foliage: Longest lateral branch about 5 to 8 cm above     foliage. -   Diameter of lateral branches: Approximately 0.2 cm. -   Texture of lateral branches: Pubescent. -   Internode length: Approximately 1 cm. -   Strength of stem: Strong. -   Color of lateral branches: Near RHS Yellow-Green 146D. -   Number of leaves per lateral branch: 13.

FOLIAGE

-   Leaf:     -   -   Arrangement.—Opposite pairs — alternate up stem.         -   Average length.—4.8 cm.         -   Average width.—0.6 cm.         -   Shape of blade.—Narrowly oblanceolate.         -   Apex.—Acute.         -   Base.—Cuneate.         -   Attachment.—Sessile.         -   Margin.—Entire.         -   Texture of top surface.—Pubescent.         -   Texture of bottom surface.—Pubescent.         -   Color.—Young foliage, upper side: RHS Yellow-Green 147B.             Young foliage, under side: RHS Yellow-Green 147B. Mature             foliage upper side: RHS Green NN137B. Mature foliage under             side: RHS Yellow-Green 147B.         -   Venation.—Type: One prominent mid-vein, with a network of             smaller veins. Venation color upper side: RHS Yellow-Green             146C. Venation color under side: RHS Yellow-Green 146B. -   Petiole: Not present.

FLOWER

-   Bloom period: Naturally blooming June to July. -   Inflorescence:     -   -   Form.—Small single flower in verticillasters arranged in             spikes. Flowers have bracts. Corolla tube has 2 upper lips             and 3 lower lips. -   Flower spikes:     -   -   Height.—3.6 cm.         -   Diameter.—2.2 cm.         -   Shape.—Cylindrical.         -   Flowers per spike.—Average range of 30 to 36 individual             flowers per spike, arranged in 5 to 6 whorls, each whorl             typically having 6 flowers. Short distance between whorls,             about 5 mm.         -   Infertile bracts.—Interfertile bracts not observed. -   Flower bud:     -   -   Height.—0.6 cm.         -   Width.—0.3 cm.         -   Color.—RHS White 155D at tip, Yellow-Green N148C at base. -   Individual flower:     -   -   Corolla-length of upper lobes (2).—0.4 cm.         -   Corolla-length of lower lobes (3).—0.3 cm.         -   Corolla-width of upper lobes.—0.3 cm.         -   Corolla-width of lower lobes.—0.3 cm.         -   Corolla tube length.—About 0.3 cm.         -   Shape of upper lobes.—2 conjoined lobes, slightly hooded.         -   Shape of lower lobes.—3 smaller lobes, fused about             half-length.         -   Apex of upper lobes.—Blunt and rounded.         -   Apex of lower lobes.—Rounded.         -   Texture of corolla- upper surface.—Slightly savoyed,             slightly pubescent.         -   Texture of corolla-lower surface.—Slightly savoyed, slightly             pubescent.         -   Color when opening-upper surface.—RHS White NN155C.         -   Color when opening-lower surface.—RHS White NN155C.         -   Color when fully open.—RHS White NN155B.         -   Corolla tube color.—Exterior RHS White NN155C. Interior RHS             White NN155B.         -   Calyx arrangement.—Tubes.         -   Calyx width.—0.5 cm.         -   Sepal length.—0.6 cm.         -   Sepal texture.—Pubescent.         -   Sepal color-flower open.—RHS Greyed-Green 195A.         -   Sepal color-fully open.—RHS Greyed-Green 1985B. -   Inflorescence bracts (3 buds subtend from each bract):     -   -   Bract width.—0.8 cm.         -   Bract height.—0.6 cm.         -   Bract color.—Near RHS Yellow-Green 146C. -   Peduncle:     -   -   Peduncle length.—10.6 cm.         -   Peduncle diameter.—0.2 cm.         -   Aspect.—Upright.         -   Color.—RHS Yellow-Green 148B.

REPRODUCTIVE ORGANS

-   -   -   Filament length.—0.2 cm.         -   Anther length.—0.2 cm.         -   Anther color.—RHS Greyed-Orange 165A.         -   Pollen color.—RHS Greyed-Orange 165C.         -   Pollen amount.—Sparse.         -   Pistil length.—0.6 cm.         -   Style length.—0.3 cm.         -   Style color.—RHS White 155A.         -   Stigma color.—RHS Greyed-Yellow 160B.

OTHER CHARACTERISTICS

-   Fragrance: Strong lavender scent, both flowers and foliage. -   Disease resistance: Neither resistance nor susceptibility to     diseases or pests has been observed in this variety. -   Drought tolerance and cold tolerance: Hardy perennial. Tolerates     high temperature to at least 32° C. Tolerates low temperatures to     −12° C. While specific drought tolerance has not been observed, once     plants are established very little water is necessary to maintain     plants. -   Fruit/seed production: Fruit and seed production not observed. 

What is claimed is:
 1. A new and distinct cultivar of Lavandula plant named ‘KERBEEWHITE’ as herein illustrated and described. 